Patents by Inventor Carlton D. Hoyt

Carlton D. Hoyt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Formation of optical quality surfaces in optical material
    Patent number: 5059763
    Abstract: A method of forming optical quality surfaces in optical material is described. In particular, high optical quality end face surfaces are provided in diffused channel waveguides formed on LiNbO.sub.3 crystal material, or the like. A T-shaped trench is first formed by laser ablation. The top of the "T" bisects a plane orthogonal to and passing through the waveguide. The lower part of the "T" is centered on the longitudinal axis of the waveguide and retains an optical fiber abutting the end face.A diamond polishing wheel is inserted in the top trench to polish the end face prior to affixing the fiber optic.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: October 22, 1991
    Assignee: Massachusetts Institute of Technology
    Inventors: Daniel R. O'Brien, Charles H. Cox, III, Carlton D. Hoyt